/Engine/Source/Editor/Experimental/EditorInteractiveToolsFramework/Public/EditorGizmos/TransformGizmo.h
Construct planar axis handle
virtual [UGizmoElementRectangle](API\Runtime\InteractiveToolsFramework\BaseGizmos\UGizmoElementRectangle) * MakePlanarHandle ( ETransformGizmoPartIdentifier InPartId, const FVector & InUpDirection, const FVector & InSideDirection, const FVector & InPlaneNormal, [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * InMaterial, const [FLinearColor](API\Runtime\Core\Math\FLinearColor) & InVertexColor )